<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>

  <!-- js包引入 -->
  <link rel="stylesheet" href="style.css">
  
</head>
<body>

<div id="app">
  <div v-if="books.length">
    <table>
      <!-- 表头 -->
      <thead>
        <tr>
          <th></th>
          <th>书籍名称</th>
          <th>出版日期</th>
          <th>价格</th>
          <th>购买数量</th>
          <th>操作</th>
        </tr>
      </thead>
  
      <!-- 表数据 -->
      <tbody>
        <tr v-for="(item, index) in books">
            <td>{{item.id}}</td>
            <td>{{item.name}}</td>
            <td>{{item.date}}</td>
            <!-- <td>{{getfinalPrice(item.price)}}</td> -->
            <!-- <td>{{item.price | 过滤器}}</td> -->
            <td>{{item.price | showPrice}}</td>
            <td>
              <button @click="decrement(index)" :disabled="item.count <= 1">-</button>
              {{item.count}}
              <button @click="increment(index)">+</button>
            </td>
            <td>
              <button @click="removehandle(index)">移除</button>
            </td>
        </tr>
      </tbody>
    </table>
    <h2>总价格 ： {{totalPrice | showPrice}}</h2>
  </div>
  <h2 v-else>购物车为空</h2>

</div>
  
<script src="../js/vue.js"></script>
<script src="main.js"></script>

<script>
  // 保留两位小数
  // let n = 2;
  // n.toFixed(2)
</script>

</body>
</html>